Bobbin for cotton-looms.



'PATENTED MAY 2, 1905.

J. H. WHITTEN.

BOBBIN FOR COTTON LOOMS.

APPLIOATION FILED NOV. 1 6, 190 4.

\A/lT E5 '5 E. '5 1 \/E C, fads A Patented. May 2, 1905.

JOHN H. VVHITTEN, OF MANCHESTER, NEW HAMPSHIRE.

BQBBIN FOR COTTON-LOQIWS.

SPECIFICATION forming part of Letters Patent No. 788,806, dated May 2, 1905.

Application filed November 16, 1904. Serial No. 232,987.

To all whmn it may concern:

Be it known that I, J OHN H. WVHITTEN, a citizen of the United States, residing in Manchester, in the county of Hillsboro and State of New Hampshire, have invented a new and useful Improvement in Bobbins for Cotton-Looms, of which the following is a specification.

This invention relates particularly to bobbins of the style provided with alilling change such are used in the Draper looms, and I more specifically to bobbins which are provided with a cone on the spindle which receives the blows of the feeler and is held in position by the thread until but little thread is left on the spindle, when said cone falls or yields and allows the bobbin to be thrown ed, a bobbin provided with such a cone being illustrated in Letters Patent of the United States, dated June 14, 190%, and numbered 762,422.

In the Letters Patent referred to a hollow cone is retained on the spindle below the head by means of a ring on the spindle. In the present invention the ring is done away with, and a hollow cone is retained in position on the spindle by means of cars which extend from its smaller end into longitudinal slots formed in the spindle at a suitable distance from the head, the principal object of my invention being to do away with said ring and provide a better means of engagement with the spindle, and thereby simplify the construction of the bobbin without in any manner lessening the efliciency in operation.

The nature of the invention is fully described below and illustrated in the accompanying drawings, in which- Figure .l is a longitudinal section of the bob bin in a full condition. Fig. Qis an elevation oi? the bobbin with thethread nearly unwound from it and the cone in position to allow the bobbin to be thrown off. Fig. 3 is a view of the cone removed. The location of the feeler is indicated by dotted lines in Figs. 1 and 2.

Similar letters of reference indicate corresponding parts.

(,0 represents the spindle, and 7) the head thereof. The portion a of the spindle which lies next the head is substantially of even diameter, and said head is provided at its inner end with an annular shoulder (Z. This portion 0 of the spindle is provided on opposite sides with the longitudinal slots 6, and on this portion 0 is placed a hollow cone g, preferably of metal and tapered on its inner and outer surfaces, as indicated in Fig. 1. This cone is formed up near its larger end with an annular rib 7a and said end is of suitable size to overlap said shoulder (Z, as indicated by the portion A. This cone is confined to the portion 0 ol' the spindle by means of inwardlyextending engaging ears or projections a, which are bent, preferably, at obtuse angles from opposite sides of the smaller end of the cone into the opposite longitudinal slots 6. It will be seen. therefore, that the cone is not rigidly secured to the spindle, but is allowed both longitudinal and swinging movement.

When the spindle is loaded, the thread extends around it, as illustrated in Fig. l, and is wound around the cone 1 until the thread covers said cone up to the rib lb, which is left bare to receive the blows of the feeler. While there is thread on the cone it remains in the position indicated in Fig. 1; but when the thread is unwound therefrom the cone slips off from the head and falls loosely on the portion 0 of the spindle, ofliering no resistance to the feeler, the rib It taking the place of the thread on the bobbin at that point. The cone, however, is not disengaged from the spindle, although there is no ring to prevent it from slipping down, but is always held in loose engageinent by means of the cars a and slots a.

it will be understood that while with bobbins as ordinarily constructcd the bunch of thread which remains after the feeler refuses to strike it is quite large in my invention the thread is all unwound from the cone, and but little is left on the spindle by the time the cone is released by the unwinding of the thread, so as to fall and leave a space into which the foeler flies without striking the cone.

The cone is applied to the spindle with the ears substantially parallel, and then the ears are bent inward to extend into the slots, as illustrated.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a bobbin of the character described, the spindle provided with a suitable head; a cone on and around the spindle near the head and in the path of the feeler; and an ear or projection extending from the cone into engagement with the spindle. but allowing limited movement of the cone with relation to the spindle, said cone being adapted to be held rigidly by the thread until the thread is nearly or quite unwound therefrom and then to fall away from the path of the feeler,-for the purpose set forth.

2. In a bobbin of the character described, the spindle provided with a suitable head; a cone on and around the spindle near the head and in the path of the feeler; and an ear or projection extending from the smaller end of the cone into engagement with the spindle, but allowing limited movement of the cone with relation to the spindle, said cone being adapted to be held rigidly by the thread until the thread is nearly or quite unwound therefrom and then to fall away from the path of the feeler, for the purpose set forth.

3. In a bobbin of the character described, the spindle provided with a suitable head and with slots near said head; and a cone on and around the spindle near the head and in the path of the feeler, said cone being provided with ears or projections extending into said slots, thus allowing limited movement of the cone with relation to the spindle, said cone being adapted to be held rigidly by the thread until the thread is nearly or quite unwound therefrom and then to fall away from the path of the feeler, for the purpose set forth.

4:. In a bobbin of the character described, the spindle provided with a suitable head and with the longitudinal slots 0 near said head; and acone on and around the spindle near the head and in the path of the feeler, said cone being provided with the ears or projections 02 extending inward into said slots, for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN H. WHI'ITEN.

\Vitnesses:

JOSEPH E. LE MYRE, MARGAR T DOHERTY. 

